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Propose and Validate a Mobile App Improvement

WhatnotSoftware Engineer · Technical Screen
MediumSoftware EngineerTechnical ScreenSystem Design

Last updated

This question evaluates product design and system-design skills for mobile applications, including product thinking, high-level implementation planning, experimentation design, and metrics-driven decision-making within the system design category.

Assume you are working on a consumer mobile app. Propose one product improvement that could improve user engagement, retention, or conversion.

Your answer should cover:

  • What user problem you are solving.
  • Which user segment is affected.
  • The feature or product change you would build.
  • How you would implement it at a high level.
  • What success metrics you would use.
  • How you would design an A/B test or experiment to verify impact.
  • What guardrail metrics you would monitor.
  • Whether the change could negatively affect other users or parts of the product.